DS-72-11 Datasheet, PDF (1/14 Pages) Cymbet Corporation – Charge Pump and Battery Management ASIC Bare Die

CBC910
Power Manager ASIC
Charge Pump and Battery Management ASIC Bare Die
Features
• Power Manager with Charge Control
• Built-in Battery Protection
• Temperature Compensated Charge Control
• Adjustable Switchover Voltage
• Charges Battery Over a Wide Supply Range
• Low Standby Power
• Wire Bond attachment standard
• Gold solder bump for attachment optional
• Eco-Friendly, RoHS Compliant
Applications
• Standby supply for non-volatile SRAM, Real-time
clocks, controllers, supply supervisors, and other
system-critical components.
• Wireless sensors and RFID tags and other
powered, low duty cycle applications.
• Localized power source to keep microcontrollers
and other devices alert in standby mode.
• Power bridging to provide back-up power to
system during exchange of main batteries.
• Consumer appliances that have real-time
clocks; provides switchover power from main
supply to backup battery.
• Business and industrial systems such as:
network routers, point-of-sale terminals, single-
board computers, test equipment, multi-function
printers, industrial controllers, and utility meters.
• Energy Harvesting by coupling the energy
storage device with energy transducers such as
solar panels.
The CBC910 is a power management solution
that provides battery backup control and power
management for systems requiring power bridging
and/or secondary power.
During normal operation, the CBC910 delivers a
controlled voltage using an internal charge pump that
operates from 2.5V to 5.5V. An ENABLE pin allows
for activation and deactivation of the charge pump
using an external control line in order to minimize
current consumption when battery charge current is
not needed.
When the primary power supply dips below a user-
defined threshold voltage, the CBC910 will signal
this event and route the battery voltage to VOUT.
The CBC910 also has battery protection circuitry to
protect an attached battery from being discharged
too deeply.
The CBC910 is available as a bare die having 9 bond
pads.
Figure 1 - Typical CBC910 Applica-
tion Circuit Using External EnerChip
Rechargeable Battery as a Backup
Power Source for a Real-Time Clock
©2012-2014 Cymbet Corporation • Tel: [phone] • www.cymbet.com
DS-72-11 Rev A
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